User manual VAISALA MMT330

[. . . ] USER'S GUIDE Vaisala HUMICAP® Moisture and Temperature Transmitter for Oil MMT330 M210733EN-E PUBLISHED BY Vaisala Oyj P. O. Box 26 FI-00421 Helsinki Finland Phone (int. ): +358 9 8949 1 Fax: +358 9 8949 2227 Visit our Internet pages at http://www. vaisala. com/ © Vaisala 2009 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale. ________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The data that is stored in the logger's memory is timestamped using the logger's clock. When date and time are set on the transmitter, they are stored to the transmitter's memory as an offset from the time on the logger's clock. When browsing the stored data, the time offset is applied to the timestamps shown in the graphical history, and data outputted from the serial port. The timestamps in the data logger's memory remain as they were originally stored. You can compensate for the clock drift (less than ±2 min/year) by setting the time on the transmitter. You can set the time by using the keypad/display or the serial commands. 0706-068 Figure 37 Data Logger Module VAISALA _______________________________________________________________________ 63 User's Guide ______________________________________________________________________ The following numbers refer to Figure 37 on page 63: 1 2 = = Flat cable pins Battery After a reset or a power up, it will usually take at least 10 seconds before the data logger module is initialized. The real time clock and the data logging and reading functions are not available before the initialization is complete. The indicator LED on the module will blink green during normal operation. The transmitter will also indicate the problem by activating the "Add-on module connection failure" error. If the module is not operating correctly, the transmitter must be sent to Vaisala for maintenance. The data logger module must be installed at the factory (when ordering the transmitter), or by a Vaisala Service Center. When the module requires a new battery, the transmitter must be sent to Vaisala for maintenance. 64 __________________________________________________________________ M210733EN-E Chapter 3 _______________________________________________________________ Installation 8-Pin Connector 0503-026 Figure 38 Table 8 PIN/Terminal Wire 1 2 3 4 5 6 7 8 White Brown Wiring of Optional 8-Pin Connector Wiring of 8-Pin Connector Serial Signal RS-232 (EIA-232) Data out TX (serial GND) Supply Supply + Data in RX Cable shield Analog Signal RS-485 (EIA-485) A (serial GND) Signal GND (for both channels) Ch 2+ Ch 1 + Supply Supply Supply + Supply + B Cable shield Cable shield Green Yellow Grey Pink Blue Shield/Red VAISALA _______________________________________________________________________ 65 User's Guide ______________________________________________________________________ This page intentionally left blank. 66 __________________________________________________________________ M210733EN-E Chapter 4 ________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate this product. Getting Started Within a few seconds after power-up the led on the cover of the transmitter is lit continuously indicating normal operation. When using the optional display and turning the transmitter on the first time, the language selection menu window opens. Select the language with arrow buttons and press the SELECT button (the left-hand button). Display/Keypad (Optional) Basic Display Display shows you the measurement values of the selected quantities in the selected units. 3 quantities for the numerical basic display (see section Changing Quantities and Units on page 92. ) 0706-046 Figure 39 Basic Display The following numbers refer to Figure 39 above: 1 = The Info shorcut button, see section Device Information on page 99. VAISALA _______________________________________________________________________ 67 User's Guide ______________________________________________________________________ The following numbers refer to Figure 39 above: 2 3 = = The Graph shortcut button, see section Graphic History on page 68. Quantities selected for display NOTE From any view, a four-second press on the right-hand function button takes you directly to the basic display. Graphic History The graphical display shows the data trend or min/max graph of the selected quantities, one at a time. The graph is updated automatically while measuring. 0706-047 Figure 40 Graphical Display Trend graph: Shows you a curve of average values. Max/min graph: Shows you the minimum and maximum values in a form of curve. Table 9 Periods for Trend and Max/Min Calculations Period for Trend/Max/Min Calculations (Resolution) 20 minutes 10 seconds 3 hours 90 seconds 1 day 12 minutes 10 days 2 hours 2 months 12 hours 1 year 3 days 4 year* 12 days * Shows the maximum logging period of the data logger module (available when data logger module is installed) Observation Period 68 __________________________________________________________________ M210733EN-E Chapter 4 ________________________________________________________________ Operation Use the following functions in the graphical display: - Press the NEXT button to change between the trend graph and max/min graph for the quantities selected for display. - Press the arrow buttons move the cursor (vertical bar) along the time axis. The numerical value at the cursor position is shown at the left upper corner. The right upper corner shows the time from the present to the chosen moment (without the logger module), or the date and time at the cursor position (when the logger module is installed). [. . . ] 2004-05-21 142 _________________________________________________________________ M210733EN-E Chapter 8 ____________________________________________________________ Technical data CHAPTER 8 TECHNICAL DATA This chapter provides the technical data of the product. Specifications Measured Values Water activity Measurement range 0 . . . 1 aw Accuracy (including non-linearity, hysteresis and repeatability) 0 . . . 1. 0 ±0. 03 Response time (90%) at +20 °C in still oil (with stainless steel filter) 10 min. Sensor HUMICAP® Performance Temperature Measurement range MMT342 MMT347 MMT348 Accuracy at +20 °C (+68 °F) -40 . . . [. . . ]